well you could be anise talin from tales of abyss, she wears pig tails and has that type of skin tone, also her costume can be found at cosplaystation or cosplay magic, only ordered once form cosplay magic though, they are trust worthy. or you could be kaolla su from love hina, or zazi rainyday from negima.

yoruichi is also another good choice for you too but when doing the hair you have two options , you could wear it down which she did later in the manga and anime sorta like a short razor type bob or you could wear your hair with extentions in a high ponytail with bangs. also finding yellow contacts also can help to with that cosplay. and of course that butterfly tatoo she has